Carrier T--298 service manual Priority Malfunction

Page 24

Table 2--1 System Self--diagnostics Function (Ducted Remote)

Flashes

Error Codes

Error Contents

Display Pattern

Allowed Modes

(Priority)

(Malfunction)

2

1

ROOM AIR THERM-

0.5 sec.

FAN Mode

ISTOR FAILURE

(Twice)

3sec

3sec

.

.

3

2

INDOOR COIL

0.5 sec (3

FAN Mode

THERMISTOR FAIL-

Times)

FURNACE Mode

URE

3sec

3sec.

.

4

3

OUTDOOR COIL

0.5 sec. (4

FAN Mode

THERMISTOR

Times)

FURNACE Mode

FAILURE

3sec.

3sec

.

5

4

COMPRESSOR

0.5 sec. (5

FAN Mode

DRIVE

Times)

FURNACE Mode

MALFUNCTION

3sec

3sec

.

.

6

5

REVERSING VALVE

0.5 sec.

FAN Mode

DRIVE MAL--

(6Times)

FURNACE Mode

FUNCTION

3sec

3sec

.

.

1

6

DISCHARGE AIR

0.5 sec.

FAN Mode

THERMISTOR FAIL-

(Once)

FURNACE Mode

URE

3sec

3sec

.

.

Continuous

7

THERMISTOR

0.5 sec. (Continu-

FAN Mode

WIRING WRONG

ous)

(only in cooling

test mode)

3sec

.

NOTE:

If more than two errors occur, the highest ranked code is displayed. If the highest ranked error is cleared, the next highest ranked error code is displayed.

T--298

2-4

Image 24

Contents Model AirV AirV Safety Summary General Safety NoticesOperating Precautions Maintenance PrecautionsSpecific Warning and Caution Statements Specific Warnings and CautionsSafety 298 Table of Contents Table of Contents List of Figures Figure NumberList of Tables Table NumberSection Description IntroductionSerial Number Identification Design Change DescriptionsUpper Unit Roof Ceiling UnitAdditional Support Manuals MANUAL--FORM no Equipment Covered Type of ManualFor Part no Ceiling Unit Component Identification Free--Blow Component Identification -- Low Profile -- Upper Unit Component Listing--Ceiling Unit For Ducted Systems Supply AIR Return AIRFree Blow Type Cations START--UPRefrigerant CYCLE--STANDARD System Refrigerant Flow Schematic -- Heat Pump -- Cool Mode Cooling Refrigerant Cycle -- Heat PumpPage Section Troubleshooting Heater Cycles on Limit Switch HEAT/ Cool Version only Insufficient COOLING, Cooling AIR not AdequateCondenser AIR not Adequate Insufficient CoolingClearing Diagnostic Alarms Inadequate Heat HEAT--PUMPPriority Malfunction Section Service and Maintenance Preventative MaintenanceService -- General Ceiling Grill -- Free Blow 3.3.3 Ceiling Panel Removal Indoor Thermostat Removal Indoor Thermostat 3.3.7 Air Sweep RemovalControl Box Assembly Removal Ceiling Unit -- Ducted SystemsFilter Removal Service -- Upper Unit -- STANDARD, HC & HP PCB Display RemovalFuse Removal Compressor Replacement 15 Control BoxUpper Scroll Assembly Removal 19 Motor AssemblyAir Handling System Removal 23 Blower WheelLine Voltage -- 10% 27 Upper Scroll Assembly Locking Tabs b. & Screw Locations c 30 Condenser Fan Assembly Retaining Ring Condenser Motor Removal 34 Evaporator Motor Locking TabsCapacitor Removal Change from Fahrenheit to Celsius willBe permanent. It cannot be changed back to Fahrenheit38 Remote Control Components SET Thermostat Configuration LCD DisplayCheck Thermostat Operation Powerbox Assembly Upper UnitThermostat Thermostat Powerbox Assembly Ac to ry Wiri ng Fie ld Wiri ngSection Wiring Schematics Upper Unit Schematic -- Standard & HCCeiling Unit Schematic -- Cooling Only Heat Pump -- Ceiling Unit -- Free Blow Heat Pump -- Upper Unit -- Ducted 10 Ceiling Unit -- Wall Thermostat -- Ducted & Free Blow Wall Mounted ThermostatsIndex Ceiling Unit -- Ducted Systems Ceiling Unit -- Free Blow